Is there a library which contains the python code on how to communicate with this device?

For this product, we only have library for Arduino https://github.com/CytronTechnologies/CytronMotorDriver. However, we have made a tutorial for a similar motor driver (1Amp dual channel) using the phtyon code https://tutorial.cytron.io/2019/03/06/getting-started-with-maker-drive-and-raspberry-pi/. Please check if it helps.

Why is there an asterisk for the direction? from the graph does it not say that if you set dir to high then it goes forward and low then it goes back

Forward or backward is just a representation. Actual direction is depending on the motor connection. i.e. reverse the motor's wire terminals at the board (MA & MB) will reverse the motor spinning direction. Thank you.

I see that you have a arduino library, has it been tested or work with esp8266 or esp32?

Although we are not tested on esp8266 or esp32, but it is compatible. Just make sure the correct pin for PWM and DIR is selected

Does this board have diodes (for reverse current) to take care of back emf from the dc motor?

The MOSFET already has the diodes built-in. This motor driver is a regenerative motor driver and the energy generated by the motor during deceleration will be pumped back to the power source. Make sure a rechargeable batteries is used to power the motor driver so that it can absorb this regenerative energy.

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Cytron 20Amp Bi-Directional 6V-30V DC Motor Driver Speed Controller 60A Peak

Cytron 20Amp Bi-Directional 6V-30V DC Motor Driver Speed Controller 60A Peak

Product ID: 118008162

Details

Brand
Cytron
Color
Black
Material
Plastic
Plant or Animal Product Type
plant
Recommended Uses For Product
Automation

⚡20A continuous current

🔄Bi-directional motor control

🌡️Built-in temperature & current protection

€ 65.23

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Drive your projects forward with power and precision!

PLUG PLAY TESTING - Onboard test buttons and output LEDs let you verify motor driver function instantly—no host required.
POWER THROUGH ANYTHING - Supports 6V to 30V DC motors with up to 20A continuous and 60A peak current—no heatsink needed.
SAFE SMART OPERATION - Active current limiting, temperature protection, and undervoltage shutdown keep your system secure and reliable.
UNIVERSAL COMPATIBILITY - Works flawlessly with 1.8V to 12V logic controllers like Arduino, Raspberry Pi, and PLCs for versatile integration.
SEAMLESS DIRECTIONAL CONTROL - Effortlessly reverse motor direction with precision bidirectional PWM and DIR inputs.

The Cytron 20Amp Bi-Directional DC Motor Driver offers robust control for brushed DC motors from 6V to 30V, delivering up to 20A continuous and 60A peak current without the need for a heatsink. Featuring discrete NMOS H-Bridge design, onboard test buttons, and motor output LEDs, it ensures quick setup and diagnostics. Compatible with a wide range of logic levels (1.8V to 12V), it integrates seamlessly with popular controllers like Arduino and Raspberry Pi. Built-in protections for overcurrent, temperature, and undervoltage guarantee safe, reliable operation in demanding automation and robotics applications.

Specifications

ASIN	B07NP6XNPR
Best Sellers Rank	#225,863 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #206 in Motor Speed Controllers #1,310 in Tool Sets (Tools & Home Improvement)
Customer Reviews	4.9 4.9 out of 5 stars (23)
Date First Available	February 12, 2019
Manufacturer	Cytron

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